( 
  (IP 
    (IP 
      (NP-SBJ 
        (PN 我))
	  
      (VP 
        (ADVP 
          (AD 不))
	      
        (VP 
          (VV 知道)
		  
          (IP-OBJ 
            (NP-TMP 
              (DP-WH 
                (PN 什么))
				  
              (NP 
                (NN 时候)))
			  
            (NP-SBJ 
              (NP 
                (PN 我)
				      
                (CC 和)
				      
                (NN 哥哥))
				  
              (QP 
                (CD 两))
				  
              (NP 
                (NN 人)))
			  
            (VP 
              (VP 
                (ADVP 
                  (AD 才))
				  
                (VP 
                  (VV 可以)
				      
                  (VP 
                    (VV 不用)
					  
                    (IP-OBJ 
                      (NP-SBJ 
                        (NN 母亲))
						  
                      (VP 
                        (VV 担忧))))))
			      
              (PU ，)
			      
              (VP 
                (VV 可以)
				  
                (VP 
                  (VP 
                    (VV 让)
					  
                    (NP-OBJ 
                      (PN 她))
					  
                    (IP 
                      (NP-SBJ 
                        (-NONE- *PRO*)) 
					      
                      (VP 
                        (VV 安享)
						  
                        (NP-OBJ 
                          (NN 晚年)))))
				      
                  (PU ，)
				      
                  (VP 
                    (PP-MNR 
                      (P 用)
						  
                      (NP 
                        (CP 
                          (WHNP-1 
                            (-NONE- *OP*))
							  
                          (CP 
                            (IP 
                              (NP-SBJ 
                                (PN 我们))
								  
                              (VP 
                                (VV 创造)
								      
                                (NP-OBJ 
                                  (-NONE- *T*-1))))
							      
                            (DEC 的)))
						      
                        (DNP 
                          (ADJP 
                            (JJ 小小))
							   
                          (DEG 的))
						      
                        (CP 
                          (WHNP-2 
                            (-NONE- *OP*))
							  
                          (CP 
                            (IP 
                              (NP-SBJ 
                                (-NONE- *pro*)) 
								  
                              (VP 
                                (VV 给)
								      
                                (NP-IO 
                                  (PN 她))
								      
                                (NP-OBJ 
                                  (-NONE- *T*-2))))
							      
                            (DEC 的)))
						      
                        (NP 
                          (NN 幸福))))
					  
                    (VP 
                      (VV 弥补)
					      
                      (NP-OBJ 
                        (NP 
                          (PN 她))
						      
                        (DNP 
                          (NP 
                            (DP 
                              (DT 这)
								   
                              (QP 
                                (CD 一)))
							       
                            (NP 
                              (NN 辈子)))
							   
                          (DEG 的))
						      
                        (DNP 
                          (QP 
                            (CD 不计其数))
							   
                          (DEG 的))
						      
                        (NP 
                          (NN 辛苦))))))))))))
      
    (PU ，)
      
    (IP 
      (IP-SBJ 
        (ADVP 
          (AD 哪怕))
		  
        (NP-SBJ 
          (DP 
            (DT 那))
			  
          (NP 
            (NN 幸福)))
		  
        (VP 
          (ADVP 
            (AD 只))
		      
          (VP 
            (VV 能)
			  
            (VP 
              (VV 报答)
			      
              (QP-OBJ 
                (CD 千万分之一))))))
	  
      (VP 
        (ADVP 
          (AD 也))
	      
        (VP 
          (VA 好))))
      
    (PU 。)))
arg0: *PRO*
arg1: 晚年